Protector for vision-apertures of marine vessels



o. G. H. KALLENBACH. y PROTECTOR FOR VISION APERTURES 0F MARINE VESSEILS.

APLICATION FILED OCT. 9, 1919.

1,335,059. Patented Mar. 30, 1920.

INVENTORl 4 OSCAR G. H. KALLENBACH ms A'rronxv l fw Hnn saires PATENT @FFME OSCAR Gr. HrKALLENBACH, OF ROCHESTER, NEWT YRK, A SSIGNOR T0 IBAUCH` & LOMB @PTICAL COMPANY, 0F ROCHESTER, NEW mOIFBI A CRPORATION OF `NEW` YURK.

PROTECTR FR VISION-AFERTURES 0F MARINE VESSELS.

Lasserre.

Specification of Letters Patent.

`Patented Mar. 30, 1920.

Application filed October' 9, i919. Serial No. 329,527.

To all 1li/wm t may conc-era Be it `known that l', @sean G. l-l. KALLEN- naci-i, a citizen of the United States, residing' at Rochester, in the county of Monroel and State of New York, have invented certain new and useful Improvements in 'Protectors for Vision-Apertures of Marine Vessels; and l do hereby declare the following to be a full, clear, and exact description of the same, reference being' had to the accompanying' drawings, formingl a part'of this specification, and to the reference-numerals marked thereon.

My present invention relates to means for preventing` the obscuration of vision through vision apertures of marine vessels by waves or spray rising' from the surface of the water and is adapted particularly for use in connection with such devices as submarine periscopes, when the vessels carrying them are submerged with the periscope. only above the surface of the water. To this end the invention consists generally in the provision of a defiector so arranged relatively to the aperture to be protected, that spray or waves rising` from the surface of the water and particularly those caused by the movement of the support, such as a periscope tube, through the water in the direction of the vision aperture, will be deflected away from the glass or objective in order to prevent obscuration of vision, all as will be herein* after described and pointed out in the claims at the end of the specification.

ln the accoinpanying` drawings:

Figures l, 2 and 3 are perspective views showing the aperture of the periscope with my invention applied thereto, showing the manner of deflectinp, the water caused by its movement relative to the tube.

Fig. 4f is a horizontal'sectional view taken on the line m-m of Fig. 5 looking upward.

Fig. 5 is a vertical sectional view through the deflector, the periscope tube being shown partially in elevation.

Fig. 6 is a perspective View of the device applied to a periscope and Fig. 7 a similar view of a modification.

y Similar reference numerals indicate siniilar parts. i

While the invention is particularly adapted to use in connection with submarine periseopes and. I have shown it in this connection, it may` in its broader aspects be adapted to other uses.

l indicates an ordinzlry periseope tube having at its upper end a substantially horizontal opening` containing' a glass window which may be plane or lenticular in forni and presented. normally forwardly or in the direction of motion ofthe vessel. Arranged directly beneath this window or aperture is a deflector composed in the present instance of a member or block 3 preferably of metal embodying a ledge with its lower portion substantially triangular and provided with curved deflecting surfaces l extending freir the forward and lateral edges downwardly and inwardly to the point these surfaces being so formed that water or spray rising,r from the surface of the water will be deflected away from the window particularly when the periscope is movingv relatively for 'wardly as shown more particularly in Figs. l to 3 inclusive. luv the present embodiment this deiiector is composed of a cast inet-al block secured in position by a band 6 extend inp,- around the periscope tube its forwardl)Y extending ends being clamped by nuts 7 to ablocl 8 arranged between them. The block is provided with a thread-ed aperture to receive the inner end of a bolt 9 passing` through it shown in Fie-s. +L and 5 and is thereby removably secured thereto, but, of course, any other suitable form of connection 'could be employed without departing froni my invention. The surface l0 of the detleetor is preferably inclined slightly downwardly in order that it may readilyY shed water.

The particular forni of the device show-n is readily applicable to the periscope tube of the ordinary construction.

ln the form illustrated in Fig. '7 the block is shown as attached to the periscope tube by other means than the detachable band connection, as for instance, by making` it an integral part of the tube.

I claim as my invention:

l. A defiector for protecting vision apertures in marine vessels, the same comprising an outwardly extending ledge arranged beneath said aperture having; its under surface tapering inwardly and downwardly from its ends and forward edge toward a substantially central point.

' arranged beneath the vision aperture of the tube body.

periscope tube having its under surface inclined downwardly and inwardly from the outer and forward edges thereof toward the 3. A deect'r for protecting vision aper- 'tures in submarine periscope tubes, the same comprising an outwardly extending ledge arranged beneath the Vision aperture having 7^ itsupper side downwardly inclined toward the front edge and its undersurface downwardly inclined toward the tube body from its outer and forward edges.

4:. A deflector for protecting vision apertures in submarine periscope tubes, the same comprising a member having a ledge and its under surface inclined downwardly from the forward and side edges toward the center, a securing band encircling the tube and means for attaching said member to the band with the ledge beneath the vision aperture.

OSCAR Gr. H. KALLENBACH. 

